If you are looking for high temperature motor steppers we highly recommend this stepper motor. It's a class H high temperature stepper motor good to 180°C winding temperature. This is a high quality stepper motor is produced by LDO motors.
Step angle is 0.9°. This stepper motor is perfect for X/Y/Z in heated chambers. Can be used in Railcore II 3d printers as well as other 3D printers
LDO Product number: LDO-42STH48-1684MAH